kruse



Nov. 9 1926.

3 hees-Sheet 1 INVENTOR flwrw,

By Altomeys, 7 5M. a will) Filed Feb. 12, 1926 P KRUSE MACHINE FOR BOTTOMING CUPS P. KRUSE MACHINE FOR BOTTOMING CUPS Nov. 9 1926. 1,606,086

- Filed Feb.' 12, 1926 3 Sheets-Sheet 2 I/ a ll/ll i z J3 INVENTOR J4 @Z'ar We,

By Attorneys,

Nov. 9 1926.

Filed Feb. 12. 1926 3 Sheets-Sheet 5 N a M m m 3 R i: 2 7/ t n IR Q.

Patented Nov. 9, 1926.

rnrnza KRUSE, or BROOKLYN, new YORK, ASSIGNOLE, BY iansnn AssIe-nianivrs, TO

B. BLISS COMPANY, OF BROOKLYN, NE

W YORK, A CORPORATION OF DELAW'ARE.

MACHINE FOE BOTTOMING CUPS.-

Application filed February This invention provides a machine for ap plying bottoms to tubular bodies in the nature of can bodies, whereby to form a cup shaped article having tubular sides and an inserted disk-like bottom. The operation is analogous to that of bottoming can bodies, and the machine might be applied for that purpose, but is especially designed for applying bottoms to Zinc battery cups such as are H] used as the negative element in dry cells. Such battery cups are commonlymade by bending a sheet of zinc into tube form with a lap seam, soldering the seam to form a tubular body, and then inserting (with or 1- without solder) a disk-shaped bottom which is applied in and from the bottom end of the cup. Such disk-shaped bottoms necessarily, in order to make a good'conn-ection, have an upturned annular flange which makes a tight fit within .the tubular body. Heretofore the bottoms have usually been inserted within the body to. a distance equal to the projec tion of the flange, which facilitates the insertion of the bottom, but has the disadvantage that the zinc forming the fiange and an equal port-ion of the .end of the body, is unavailable for battery purposes and is wasted. V

The present invention provides for introducing a flanged bottom from the opposite end of the body (being the end which ultimately will be the open end of the cup) and pushing it entirely through the body until its disk portion occupiesa posit-ion substantially coinciding with the bottom end. of the body.

The invention is characterized by the provision of means for holding the successive tubular bodies and means for engaging a bot-- tom fed into alignment with the body and forcing it, by the operation of a long stroke plunger, entirely through the length of the body. v

. A suitable and the preferred embodiment of the invention is illustrated in the accompanying drawings, wherein,-.

Figure 1 is a side elevation, partly broken y- L Fig. 2 is an end elevation of the machine, certain portions being in section, taken in the plane of the line 22 in Fig. p

Fig. 3 is a fragmentary .elevat-ionion a larger scale, showing one of the bottoming of the section beingon elements..;the plane the line 33 in Fig.

12, 1926. serial No. 87,851.

Fig. 4 is a fragmentary view on a still larger scale, showing theparts just before the occurrence of the bottoming stroke.

Fig. 5 is a development of the-stationary cams by which the requisite bottoming movements are secured. i

Fig. 6 is a longitudinal mid-section of the finished cup or can. i y

The particular construction of machine shown in the drawings will now be described.

011 a suitable base'Aare mounted standards 13,13 and bearing pillars Q, C, the latter carrying bearings for a main shaft D which is driven from a driving shaft E through suitable gearing such as a pinion a and gear 7). Fast on the shaft Dare the parts constituting a rotary carrier F. This carrier includes a disk G and a main body H. On the body H are mounted any suitable number of bottoming elements each comprising abody hold-er J and a plunger K.

Each body holder consists of a member 0 immovably attached to the body'portion H of the carrier, and a movable clamping portion (5 adapted to co-operate with the portion 0 to clamp the body, and itself mounted on a movable part Lwhich is capable of receiving movements in two different directions, as will be described, and which is best constructed as a pivoted arm or lever hung by a. pin a on a slid-e M: which is movable in longitudinal slideways N formed in the body portion H of the carrier. Each plunger K is mounted on a slide Pwhich is movable in a slideway Q, carried on said body portion H.0f the carrier. 1

The slides M and P are moved in direction parallel'with the-axis of the shaft D by any suitable mechanical movement, these being most simply formed as. cams; For. this purpose a stationary cam cylinder R is mounted coaxially with the shaft D. being held] fast in any suitable way, as, for example, by meansof bolts f engaging a sta: tionary disk gwhich is mounted fixedly upon one of the shaft bearings. The. cam cylinder B. ha g m gr ov en a g. a' o er arried hesl d M: it has a th a groove engaging a roller 7c carried by the r- The olamp inginembefii L are moved radially inward by means of. a. hired cam S, the inner face; of which engages rollers 1m ca ried: by.... he .A em ere ,L- ey. re pressed'outwardly by springs 0 (Fig. 8)

whereby their rollers are held in engage ment with the cam S when in contact therewith, and when beyond the ends of the cam, are thrown out to their utmost position, which is limited by a shoulder a formed by the head of a bolt or stud p.

The can bodies a2 are delivered through an upright feed chute T, and the bottoms y are .delivered through another feed chute T.

These feed chutes are constructed in any usual or suitable way, being conveniently made of plate metal supported on transverse rods 9" extending between the upright frames B, B. The cam S is conveniently supported on other bolts 9 between said uprights.

The disk G forming part of the carrier F carries can body supports which corre spond to the supports 0.

In operation the tubular bodies :0 are fed down successively (by any suitable feeding means, not shown) from the feed chute T and dropped onto the supports 0, c of the carrier. Simultaneously with the dropping of each body a bottom 3 is dropped down from the chute T. Fig. 1- shows the position of the parts before the plunger stroke, the bottom being in alignment with the body :0, and the plunger K having been previously drawn back far enough to leave ample room for feeding down the bottom 11 As the carrier F revolves (for example, in the direction of the arrow in Fig. 2), the body and bottom are carried first idly until the radial line intersecting their axis arrives in approximation to the position indicated by the line in Fig. 2, whereupon the slide M begins to move forward, and when it has reached the position approximating that indicated by the line 11, its forward motion ends and the roller m of the clamping member L encounters the inclined or cam-shaped end portion S of the cam S, which forces the roller and member L inwardly, thereby causing the clamping jaw (Z to engage the entering end of the tubular body, as shown in Fig. 3. Since the clamping part-s0 and (Z are'each semi-circular and fit closely to the exterior of the tubular body, their effect when pressed together is to bring the tubular body to a true circle if it has been at all distorted therefrom, and present it in perfect alignment with the bottom 3 and plunger K. Thereupon when the parts have advanced to the position approximately indicated by the line 12 in Fig. 2, the plunger K begins to move forward, enters within the flange of the bottom y, and pushes this bottom before it into the entering end of the tubes, and by thereupon executing a long stroke pushes the bottom entirely through the tube a: to the position indicated at g in Fig. 6. This long stroke of the plunger occupies the time while the parts are traveling from the position indicated by the radial line 12 to that indicated} by the radial line 13 in Fig. 2; thereupon (or after a short pause) the plunger begins to recede (which it may do more rapidly since this is an idle stroke) and it may complete its return stroke, for example, by the time the parts have reached the position shown approximately by the line 14; then, or soon thereafter, the clamping member L begins to open by its roller running out on the portion S of the cam S, after which the slide M is retracted by a longitudinal movement to its original position. As the body holder thus opens and releases the finished cup 00, the latter drops freely out, since its holding means is now in an inverted posir tion. This release of the finished cup or can may occur when the parts have reached approximately the position indicated by the line 15, so that it may fall out through the path y and drop clear of the end of the cam S.

Thus the machine operates essentially by suitably gripping the tubular body, centering and rounding its entering end, aligning therewith the disk-shaped bottom, forcing i this bottom by the movement of a plunger into the entering end of the tubular body, and by a continuation of the plunger stroke corresponding to the length of the body, carrying the bottom entirely through the body and leaving it within the extreme farther end of the latter, whereupon the plunger is withdrawn and the holding means are opened to release the completed cup or can.

The flange of the bottom may be made a sufficiently tight fit with the interior of the body so that no other uniting means is required; or the parts may be afterward soldered together;

The plungers K are shown as united to t the slides P by having a screw shank which is screwed into a threaded socket in the slide; to prevent possible unscrewing, the plunger is formed with a groove 1 which is engaged by a key 8 carried on the body member H of the carrier.

The cam grooves 71, are shown in the development (Fig. 5) of the cylinder B; it is to be understood, however, that the relative movements of these parts may be varied as desired, provided only that the operations described be performed in their proper operative sequence.

The inventive ideas herein set forth may be carried into effect by other mechanical movements, no novelty being claimed for the particular combination of moving parts herewith illustrated, apart from the performance of their essential functions. Thus the invention may be modified to a certain extent within the scope of the appended claims.

I claim as my invention 1. A machine for bottoming cups comprising means for holding a tubular body,

and a plunger adapted to force a bottom through the body from one end to the other.

2. A machine for bottoming cups comprising means for holding a tubular body, including centering means adapted to bring the entering end of the body to true form, and a plunger aligned therewith adaptedto engage a bottom in intervening position and force it through the body to the opposite end of the latter.

3. A machine for bottoming cups comprising a support onto Which a tubular body may be fed, clamping means movable against the body to hold it against such support, and a plunge-r adapted to force a bottom through the body from one end to the other. i

4. A machine for bottoming cups comprising a support onto which a tubular body may be fed, clamping means movable over the entering end of the body and movable against it to confine it against such support, and a plunger adapted to force a bottom through the body from one end to the other.

5. A machine for bottoming cups compriscarried thereby for holding tubular bodies, a plurality of plungers adapted to force boting a rotary carrier, a plurality of means toms through such bodies from end to end, and means adapted during the rotationot said carrier to impart movements to said elements.

6. A machine for bottoming cups comprising -a rotary carrier, a plurality of clamping means carried thereby for holding tubular bodies, a plurality of sliding plungers carried thereby, each adapted to force a bottom through the body from one end to the other, and stationarycams engaged by the moving parts for imparting to them their several movements.

7. A machine for bottoming cups comprising a rotary carrier, a plurality of clamping means carried thereby for holding tubular bodies, each of said clamping means having a portion immovably fixed to the carrier, and a member mounted on the carrier and relatively movable to engage and clamp the entering end of a body, a plurality of sliding plungers carried by said carrier, and driving means adapted during the rotation of the carrier to impart the operative movements to said parts.

In Witness whereof, I have hereunto signed my name.

PETER KRUSE. 

